摘要
依托成都-贵阳高铁大方隧道工程,对高速铁路隧道下穿既有高速公路路堤影响进行研究,通过三维建模计算了路面的沉降分布规律,并采用Peck公式对横向沉降进行拟合分析,二者吻合良好,通过计算得到地层损失率vl为2.8%,沉降槽宽度系数K为0.86。
Roadbed of existing highway affected by high-speed railway tunnel was studied based on the project of Dafang tunnel of Chengdu-Guiyang high-speed railway. Road surface settlement rule was gained by 3-D modeling. Transverse surface settlement was good fit of Peck formula. Strata loss rate （v1=2.8%） and width coefficient of settlement tank （K=0.86） were gained by calculation.
出处
《交通科技》
2015年第6期62-64,共3页
Transportation Science & Technology
关键词
高铁隧道
既有高速公路路基
沉降规律
数值模拟
high-speed railway tunnel
roadbed of existing highway
settlement rule
numerical simulation
